Net shear-board.



T. SOGABE.

NET SHEAR BOARD.

APPLICATION FILED APR.27. 1914.

Patented July 27, 1915.

2 SHEETS-SHEET l.

T. SOGABE.

NET SHEAR BOARD.

APPLICATION FILED APR. 27. 1914.

1,147,983. Patented July 27,1915.

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TOKUSI-IIRO SOGABE, OF LOS ANGELES, CALIFORNIA.

NET SHEAR-BOARD.

Application filed April 27, 1914. Serial No. 834,794.

To all whom it may concern:

Be it known that I, TOKUSHIRO SOGABE, a subject of the Emperor of Japan, residing at Los Angeles, in the countyof Los Angeles and State of California, have invented certain new and useful Improvements in Net Shear-Boards, of which the following is a specification.

This invention relates to new and useful improvements in net shear boards and more particularly to that class adapted to be used in connection with salmon fishery.

An object of this invention is the provision of a shear board made of such material so as to be substantial, reliable and light in weight, and furthermore to produce a shear board that will be nonporous, as it is a known fact that after considerable service the old style wooden shear board, becomes water soaked and will gradually sink while shear boards made in accordance with my idea will eliminate the latter difficulty entirely.

A further object of this invention is the provision of a series of shear boards cooperating with nets secured to each side of a boat and operating in the current of a stream from one and a half miles an hour to five miles an hour, the same requiring the attendance of but two operators, who may also if they so desire operate several sets of the net or more from the one boat,

thereby eliminating the use of two boats as is now customary.

the setting out of nets is entirelyeliminated by substituting this type of shear boards.

lVith the above and other objects in view,

this invention resides in the novel features and arrangements of parts to be hereinafter more fully described, claimed and illustrated in the accompanying drawings, in

which:

Figure 1, is a perspective view of my shear boards applied to nets and in operation, Fig. 2, is a side elevation of one of my shear boards'complete, Fig. 3, is a side elevation of the same with canvas and guide lines-removed, Fig. 4:, is'a bottom plan view I of the same, Fig. 5, 1s a longitudinal sectional view through the air chamber, removed, Fig. 6, is a vertical sectional view of the same taken on lines 66 ofFig. 5, Fig.

7-, is-a front elevation of the spring hook in a closed position, Fig. 8, is a front elevation of the same in an opened position, Fig. 9, is a front elevation of one of the clamping rings removed, and, Fig. 10, is a cross-sectional view of the body portion of my shear board removed.

Referring to Fig. l, of the accompanying drawings, the numeral 10 denotes a net secured to each side of a boat 11 by any suitable means and having a series of rings 12 secured to its upper edge as a means whereby an operating cord 13 is guided therealong from the boat 11 and connected to the inner end of an air chamber 14: as at 15, the object of which will be hereinafter more fully described. This air chamber 14 is composed of a cylindrical metal tubing 16 of suitable material and having both ends threaded as at 16 and made air tight by means of wooden disks or the like 17 securely fitted therein and further protected by pointed caps 18, which cover the opposite ends of the said air chamber la and receive the thread ed ends 16 of the same. Secured by any suitable means to the outer face of the chamber 14 at suitable intervals, thereon and encircling the same are a series of channeled bands 19 for the reception of a series of clamping rings 20, which are secured thereto by means of screws 21 and prevented from any undesired movement by means of the said channeled bands 19. These clamping rings 20 are grooved as at 22 this groove being for the reception of a longitudinally disposed pipe 23, which terminates at both ends'in curved portions 24, which are coupled at this point by means of a T joint with another longitudinally disposed pipe 25, which also terminates at both ends into curved portions 26 corresponding with those of the previously mentioned pipe 23, thus it will be readily understood that both these longitudinally disposed pipes 23 and 25 together with their curved ends 24 and 26 constitute the frame B of the body portion of'my shear board, which is designated by the letter A. Secured to the intermediate portion of the frame B and longitudinally disposed therebetween is a curved pipe 27 the opposite ends of which, are substantially secured to the said frame B bymeans of the previously mentioned T joint, while secured to opposite ends of the longitudinally disposed bars 23 and 25 and also to the intermediate portions of the same are secured by a suitable means a series of Wires 28 29 and 30 made'of suitable material and having their intermediate portions encircling the curved pipe 27 while disposed at an angle and secured by a suitable means at opposite ends of the said bars 23 and 25 are still another series of wires 31 and 32, which are also made of suitable material and crossing the curved pipe 27 at the intermediate portion thereof and clamped thereto by means of a washer 33, having an aperture formed therein through which passes an eye bolt 84:, thence through an aperture formed in the intermediate portion of the pipe 27 and substantially held in position by means of a nut 35, thus it will be readily seen that-all the wires are curved, owing to the fact that all of the said wires are secured to the frame B and then carried over the curved bar 27, this feature being clearly illustrated in Fig. 4- of the accompanying drawings. Covering this construction of curved wires and the curved bar 27, is a sheet of heavy canvas or the like 36 secured to the frame B by any suitable means as clearly illustrated in Fig. 2 of the accompanying drawings, thereby producing a complete shear board, having a body portion A with a concaved outer face formed thereon, which has a tendency to hold the said board in the proper position when in operation. The outer face of this body portion A has extended therefrom a series of guide lines 37 secured at suitable intervals to the said frame B, the outer ends of these lines having secured thereto a ring 38, which also has secured thereto a main line 39, the opposite end of which is secured to the eye bolt 34, thus the entire shear board is held in the desired position while in operation by means of these guide lines 37 cooperating with the main guide line 39. Connected with the said ring 38 is a spring hook 40, one end of which is connected to the net as at 41 while its opposite end has a circular spring 42- pivotally secured thereto with a series of hooks 43 also secured thereto by any suitable means.

The operation of this shear board in connection with nets is as follows: The operators after obtaining a suitable boat and having one end of the nets secured thereto and the opposite ends secured .to the shear boards proceed against the current at a rate of from one and a half to five miles per hour, the shear boards being of such construction and coupled with the nets in such a manner through the medium of a series of guide lines so as to keep the said nets in parallel relation to the said boat, this furthermore being due to the fact that when the shear boards together with the nets are forced through the current at the rate above stated, the current will have a tendency to bow the nets in the manner clearly illustrated by Fig. 1 of the accompanying drawings, while the shear boards while sailing against the current of speed will have a' tendency to draw on the said nets, thus it will be readily seen that the nets are forced and held in parallel relation to the boat by means of the shear boards coiiperating with the current of speed. WVhen it is desired to haul in the nets, the operator simply pulls on the operating cord 13 and by doing so immediately turns the shear board into such a position so as to permit the same to be hauled together with the net back into the boat without any resistance caused by the current against the said shear board.

It is now thought that the above explanation of the operation of this device together with the accompanying drawings is sufficient to enable those familiar with this art to readily understand the construction and operation of the same and it may be further stated thata series of shear boards may be applied to each net should the current require the services of the same. It should be understood in this connection, however, that various minor changes in the details of construction can be resorted to within the scope of the appended claims without departing from or sacrificing any of the advantages of this invention.

From the foregoing disclosure taken in connection with the accompanying drawings, it will be manifest that a shear board,

is provided, which will answer all of the necessary requirements of such a device and at the same time possesses many advantages over similar devices now on the market.

Having thus fully described this invention, what I claim as new and desire to protect by Letters Patent is:

1. A shear board comprising an air chamher, a frame secured thereto, canvas covering the frame and a concaved outer face formed thereon.

2. A shear board having a ring secured thereto and a cord passing therethrough and secured to the inner end of the shear board as a controlling means for the same.

3. A shear board comprising an air chamber, a series of channeled bands secured thereto, a series of clamping rings secured thereto, caps covering the opposite ends of the said chamber, a frame, secured to the said chamber, and canvas covering the same.

1. A shear board comprising an air chamber consisting of a cylindrical metal tubing having threads formed thereon at its opposite ends, disks securely fitted therein, screw threaded caps covering the said ends, a frame secured to the said tubing, and canvas covering the same.

5. A shear board comprising an air cham ber, a series of clamping rings secured thereto, a frame composed of a series of longitudinally disposed pipes terminating in curved end portions, a T joint coupling the same with acurved and longitudinally dis,-

posed pipe having an aperture formed therein, and canvas covering the said frame.

6. A shear board comprising an air chamher, a frame secured thereto, and consisting of a series of pipes, a curved pipe secured to the intermediate portion of the said frame and longitudinally disposed therebetween and having an aperture formed therein, a series of Wires secured to the said frame, means for securing one of the said Wires to the curved intermediate portion of the frame, and canvas covering the said frame.

thereto, a cord secured to the inner end of 15 the shear board and passing through the said guide rings, as a controlling means for the said shear board.

In testimony whereof I affix my signature in presence of two Witnesses.

TOKUSHIRO SOGABE. Witnesses:

F. OOHIAI, F. A. MAOKIE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, I). G. 

